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<div class="title">nrf51/Board/nrf6310/radio_example/main_tx.c</div>  </div>
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<a href="nrf6310_2radio__example_2main__tx_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* Copyright (c) 2009 Nordic Semiconductor. All Rights Reserved.</span>
<a name="l00002"></a>00002 <span class="comment"> *</span>
<a name="l00003"></a>00003 <span class="comment"> * The information contained herein is confidential property of Nordic</span>
<a name="l00004"></a>00004 <span class="comment"> * Semiconductor ASA.Terms and conditions of usage are described in detail</span>
<a name="l00005"></a>00005 <span class="comment"> * in NORDIC SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.</span>
<a name="l00006"></a>00006 <span class="comment"> *</span>
<a name="l00007"></a>00007 <span class="comment"> * Licensees are granted free, non-transferable use of the information. NO</span>
<a name="l00008"></a>00008 <span class="comment"> * WARRANTY of ANY KIND is provided. This heading must NOT be removed from</span>
<a name="l00009"></a>00009 <span class="comment"> * the file.</span>
<a name="l00010"></a>00010 <span class="comment"> *</span>
<a name="l00011"></a>00011 <span class="comment"> */</span>
<a name="l00012"></a>00012 
<a name="l00030"></a>00030 <span class="preprocessor">#include &lt;stdint.h&gt;</span>
<a name="l00031"></a>00031 <span class="preprocessor">#include &lt;stdbool.h&gt;</span>
<a name="l00032"></a>00032 <span class="preprocessor">#include &quot;nrf_delay.h&quot;</span>
<a name="l00033"></a>00033 <span class="preprocessor">#include &quot;radio_config.h&quot;</span>
<a name="l00034"></a>00034 <span class="preprocessor">#include &quot;nrf_gpio.h&quot;</span>
<a name="l00035"></a>00035 
<a name="l00036"></a><a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f">00036</a> <span class="keyword">static</span> uint8_t <a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f" title="Packet to transmit.">packet</a>[50];  
<a name="l00037"></a>00037 
<a name="l00042"></a><a class="code" href="group__nrf__dev__radio__tx__example.html#ga840291bc02cba5474a4cb46a9b9566fe">00042</a> <span class="keywordtype">int</span> <a class="code" href="group__gpio__example.html#ga840291bc02cba5474a4cb46a9b9566fe">main</a>(<span class="keywordtype">void</span>)
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044   uint32_t counter=0;
<a name="l00045"></a>00045   
<a name="l00046"></a>00046   <span class="comment">/* Start 16 MHz crystal oscillator */</span>
<a name="l00047"></a>00047   NRF_CLOCK-&gt;EVENTS_HFCLKSTARTED = 0;
<a name="l00048"></a>00048   NRF_CLOCK-&gt;TASKS_HFCLKSTART = 1;
<a name="l00049"></a>00049 
<a name="l00050"></a>00050   <span class="comment">/* Wait for the external oscillator to start up */</span>
<a name="l00051"></a>00051   <span class="keywordflow">while</span> (NRF_CLOCK-&gt;EVENTS_HFCLKSTARTED == 0) 
<a name="l00052"></a>00052   {
<a name="l00053"></a>00053   }
<a name="l00054"></a>00054 
<a name="l00055"></a>00055   <span class="comment">// Turn peripherals on</span>
<a name="l00056"></a>00056   <span class="comment">// Power on the PPI peripheral</span>
<a name="l00057"></a>00057   NRF_POWER-&gt;PERPOWER |= (POWER_PERPOWER_PPI_Power &lt;&lt; POWER_PERPOWER_PPI_Pos);
<a name="l00058"></a>00058 
<a name="l00059"></a>00059   <span class="comment">// Wait for the power up</span>
<a name="l00060"></a>00060   <span class="keywordflow">while</span> ((NRF_POWER-&gt;PERRDY &amp; POWER_PERRDY_PPI_Msk) != (POWER_PERRDY_PPI_Ready &lt;&lt; POWER_PERRDY_PPI_Pos))
<a name="l00061"></a>00061   {
<a name="l00062"></a>00062   }
<a name="l00063"></a>00063 
<a name="l00064"></a>00064   <span class="comment">// Power on the Radio</span>
<a name="l00065"></a>00065   NRF_POWER-&gt;PERPOWER |= (POWER_PERPOWER_RADIO_Power &lt;&lt; POWER_PERPOWER_RADIO_Pos);
<a name="l00066"></a>00066 
<a name="l00067"></a>00067   <span class="comment">// Wait for power up</span>
<a name="l00068"></a>00068   <span class="keywordflow">while</span> ((NRF_POWER-&gt;PERRDY &amp; POWER_PERRDY_RADIO_Msk) != (POWER_PERRDY_RADIO_Ready &lt;&lt; POWER_PERRDY_RADIO_Pos))
<a name="l00069"></a>00069   {
<a name="l00070"></a>00070   }
<a name="l00071"></a>00071 
<a name="l00072"></a>00072   <span class="comment">// Set Port 0 as input</span>
<a name="l00073"></a>00073   <a class="code" href="group__nrf__gpio.html#ga6d5c4a1b82ed45f7972aea6572e085f5" title="Configure GPIO pin range as inputs with given initial value set, hiding inner details. This function can be used to configure pin range as simple input.">nrf_gpio_range_cfg_input</a>(0, 7, <a class="code" href="group__nrf__gpio.html#gga07e0c8c0b30499cf0a7b79dbe62d3fcca13ffcb94eb78be866c66b5f5b516af65" title="Pin pullup resistor disabled.">NRF_GPIO_PIN_NOPULL</a>);
<a name="l00074"></a>00074 
<a name="l00075"></a>00075   <span class="comment">// Set Port 1 as output</span>
<a name="l00076"></a>00076   <a class="code" href="group__nrf__gpio.html#ga08c820bf0360c7406b64ddaf3bfc7222" title="Configure GPIO pin range as outputs with normal drive strength. This function can be used to configur...">nrf_gpio_range_cfg_output</a>(8, 15);
<a name="l00077"></a>00077 
<a name="l00078"></a>00078   <span class="comment">// Set radio configuration parameters</span>
<a name="l00079"></a>00079   radio_configure();
<a name="l00080"></a>00080 
<a name="l00081"></a>00081   <span class="comment">// Set payload pointer</span>
<a name="l00082"></a>00082   NRF_RADIO-&gt;PACKETPTR = (uint32_t)<a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f" title="Packet to transmit.">packet</a>;
<a name="l00083"></a>00083 
<a name="l00084"></a>00084   <span class="keywordflow">while</span>(<span class="keyword">true</span>)
<a name="l00085"></a>00085   {
<a name="l00086"></a>00086     <span class="comment">// Read Data to send, button signals are default high, low on pressing</span>
<a name="l00087"></a>00087     <a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f" title="Packet to transmit.">packet</a>[6] = (uint8_t)(counter);
<a name="l00088"></a>00088     <a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f" title="Packet to transmit.">packet</a>[5] = (uint8_t)(counter &gt;&gt; 8);
<a name="l00089"></a>00089     <a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f" title="Packet to transmit.">packet</a>[4] = (uint8_t)(counter &gt;&gt; 16);
<a name="l00090"></a>00090     <a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f" title="Packet to transmit.">packet</a>[3] = (uint8_t)(counter &gt;&gt; 24);
<a name="l00091"></a>00091     <a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f" title="Packet to transmit.">packet</a>[2] = ~((uint8_t) (NRF_GPIO-&gt;IN));  <span class="comment">// Write GPIO to payload byte 0</span>
<a name="l00092"></a>00092     <a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f" title="Packet to transmit.">packet</a>[1] = 0xFF;                         <span class="comment">// Write 1&#39;s to S1, for debug purposes</span>
<a name="l00093"></a>00093     <a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f" title="Packet to transmit.">packet</a>[0] = 0x05;                         <span class="comment">// Set Length to 5 bytes</span>
<a name="l00094"></a>00094 
<a name="l00095"></a>00095     NRF_RADIO-&gt;EVENTS_READY = 0U;
<a name="l00096"></a>00096     
<a name="l00097"></a>00097     <span class="comment">// Enable radio and wait for ready</span>
<a name="l00098"></a>00098     NRF_RADIO-&gt;TASKS_TXEN = 1;
<a name="l00099"></a>00099 
<a name="l00100"></a>00100     <span class="keywordflow">while</span> (NRF_RADIO-&gt;EVENTS_READY == 0U)
<a name="l00101"></a>00101     {
<a name="l00102"></a>00102     }
<a name="l00103"></a>00103 
<a name="l00104"></a>00104     <span class="comment">// Start transmission and wait for end of packet.</span>
<a name="l00105"></a>00105     NRF_RADIO-&gt;TASKS_START = 1U;
<a name="l00106"></a>00106 
<a name="l00107"></a>00107     NRF_RADIO-&gt;EVENTS_END = 0U;
<a name="l00108"></a>00108     
<a name="l00109"></a>00109     <span class="keywordflow">while</span>(NRF_RADIO-&gt;EVENTS_END == 0U) <span class="comment">// Wait for end</span>
<a name="l00110"></a>00110     {
<a name="l00111"></a>00111     }
<a name="l00112"></a>00112 
<a name="l00113"></a>00113     <span class="comment">// Write sent data to port 1</span>
<a name="l00114"></a>00114     <a class="code" href="group__nrf__gpio.html#gac1d4940bc5ad4aad4f6363c7021b08ae" title="Write GPIO port.">nrf_gpio_port_write</a>(<a class="code" href="group__nrf__gpio.html#ggaa1a5c145e334817f2d960317d64fcb3da9209d7820d65eb58c7804e676581bf40" title="Port 1 (GPIO pin 8-15)">NRF_GPIO_PORT_SELECT_PORT1</a>, <a class="code" href="group__nrf__dev__radio__tx__example.html#ga15c61419d3cc2f5cbc1f749bc7b13d5f" title="Packet to transmit.">packet</a>[2]);
<a name="l00115"></a>00115 
<a name="l00116"></a>00116     NRF_RADIO-&gt;EVENTS_DISABLED = 0U;
<a name="l00117"></a>00117 
<a name="l00118"></a>00118     <span class="comment">// Disable radio</span>
<a name="l00119"></a>00119     NRF_RADIO-&gt;TASKS_DISABLE = 1U;
<a name="l00120"></a>00120 
<a name="l00121"></a>00121     <span class="keywordflow">while</span>(NRF_RADIO-&gt;EVENTS_DISABLED == 0U)
<a name="l00122"></a>00122     {
<a name="l00123"></a>00123     }
<a name="l00124"></a>00124 
<a name="l00125"></a>00125     counter++;
<a name="l00126"></a>00126   }
<a name="l00127"></a>00127 }
<a name="l00128"></a>00128 
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